I just loaded some H4350 and 180 gr NP and was amazed at the groups! I will chrony 68-grs and Fed215 this weekend I hope. If I can get 2900 or better I am hooked. IMR4350 did well too. RL22 in my gun likes it hot or 76-grs+. That H4350 since i have so much would be great!
Let that monster out of it's cage. Load up some heavies with H1000 or Retumbo. The 300 WM is far more capable as a long range rifle when you step into the 200+ grainers, especially with the high BC Amax and Berger bullets. My favorite loads are with the 230 and 215 berger hybrids with Retumbo. The 230 load is 2800 fps and the 215 load is 2940 fps. Both loads carry well over 2000 ft/lbs of energy past 700 yards.